JPH0610044B2 - Carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to a carrier device using a carrier truck that moves along a carrier path.

(Prior Art) As a carrier device using a carrier truck that moves along a carrier path, there is one disclosed in Japanese Patent Laid-Open No. 62-70107.

In this transfer device, the vertical wheels (traveling wheels) and horizontal wheels (guide wheels) of the transfer vehicle are connected to rails (traveling rails) and vertical plate-shaped support surfaces having horizontal plate-shaped supporting surfaces of the corresponding transport paths. Is engaged with a rail (guide rail) having.

However, in the transport device disclosed in Japanese Patent Laid-Open No. 62-70107, vertical loads are supported by engagement of vertical wheels (traveling wheels) with rails having horizontal plate-shaped supporting surfaces (traveling rails), The horizontal load is supported by the engagement of the horizontal wheels (guide wheels) and the rails (guide rails) having vertical plate-shaped supporting surfaces, so that each rail (travel rail and guide rail) is extended over the entire length of the transport path. Therefore, it is troublesome to install the rail, and in particular, since the rail has an L-shaped cross section or a U-shaped cross section, the linear portion of the transport path is aside, and the curved portion of the transport path is not supported. However, there is a problem that the installation and manufacturing of the rail are troublesome.

Further, for example, a pan conveyor device disclosed in Japanese Utility Model Laid-Open No. 62-68911 is known. In this pan conveyer device, tubular rails are arranged along both sides of the transport path, and a carriage running on the transport path is provided with a plurality of wheels that hold these rails.

However, in the transport device disclosed in Japanese Utility Model Laid-Open No. Sho 62-68911, the load of the truck is supported only by the engagement between the rails on both sides and the wheels of the truck.
It is necessary to increase the strength of this rail so that it can withstand shocks during transportation and unloading of goods, and there is a problem in that installation and manufacturing of the rail are troublesome.

(Problems to be Solved by the Invention) As described above, in the transport device disclosed in Japanese Patent Laid-Open No. 62-70107, it is necessary to provide the traveling rail and the guide rail over the entire length of the transport path. It has a problem that it is troublesome to install and manufacture.

Further, in the pan conveyor device disclosed in Japanese Utility Model Laid-Open No. 62-68911, since the load of the truck is supported only by the engagement of the tubular rails arranged on both sides of the conveying path and the wheels of the truck, It is necessary to increase the strength of this rail so that it can withstand shocks during loading and unloading, which poses a problem of troublesome installation and manufacturing of the rail.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a carrier device that can stably support a carrier carriage that moves along a carrier path by rails and that can easily install the rails. And

[Structure of Invention]

(Means for Solving the Problem) The present invention relates to a transport device for transporting an article W by moving a transport carriage 1 along a transport path 2 having a straight line portion and a curved portion continuous, wherein the transport is performed. The path 2 includes a round bar-shaped first rail 15 provided on the entire length of the transportation path 2 and a second rail 16 having a plate-shaped supporting surface provided on a straight portion of the transportation path 2. In the straight line portion of the transport path 2, there are set a loading position 41 for loading the product W into the transport carriage 1 and carry-out positions 42, 43 for transporting the product W out of the transport carriage 1. 1 has a horizontal wheel 13 having an inverted H-shaped cross section having flanges 13a for sandwiching the first rail 15 on both sides, and a vertical wheel 14 supported on the second rail 16 at the lower portion. The upper part has carrying-out means 6, 52, 56, 59 for carrying out the article W to the side of the carrying path 2.

(Operation) In the transport device of the present invention, the article W is transported by the transport carriage 1 that moves along the transport path 2, and is delivered to the carry-in position 41 and the carry-out devices 42, 43 set in the straight line portion of the transport path 2. Then, the articles W are loaded into and unloaded from the transport carriage 1, respectively.
Then, a round bar-shaped first rail provided over the entire length of the transport path 2
15 and inverted H-shaped horizontal wheel 1 with flanges 13a on both sides 1
By engaging with the carriage 3, the carriage 1 is positioned in the horizontal and vertical directions and the load is supported. In addition to this,
Second with a plate-shaped support surface provided in the straight portion of the transport path 2
By the engagement of the rails 16 and the vertical wheels 14,
Is supported in the vertical direction, shock countermeasures are taken when loading and unloading the article W, and the carriage 1 is stably supported. Since the first rail 15 has a round bar shape, it can be easily formed in a curved shape and can be easily installed on the curved portion of the transport path 2. Also, the second rail 16
Has a plate-shaped supporting surface, but is provided only on the straight portion of the conveying path 2, so that the second rail 16 can be easily formed and installed, and the squeak of the vertical wheel 14 at the curved portion can be achieved. Generation of sound is suppressed.

(Example) The Example of the conveying apparatus of this invention is described with reference to drawings.

First, the principle of this embodiment will be described with reference to FIGS. 6 and 7, and then the details will be described.

Reference numeral 1 denotes a transport carriage, which is configured to move the transport carriage 1 in a front-rear direction in the figure along a transport path 2 which will be described later. A moving frame 3 is provided as a moving body that can move in both directions.

Further, one or more rollers 4, two rollers in the example of FIG. 6 and one roller 4 in the example of FIG. 7 are arranged parallel to each other on both sides of the carrier 1 and are pivotally supported. In addition, two or more rollers, that is, two rollers 5 in the example of FIG. 6 and the example of FIG. 7, are pivotally supported on the moving frame 3.

Further, an intermediate portion of a support belt 6 made of a flat belt having a conveyance direction of both sides intersecting with the moving direction of the transport carriage 1 is arranged on the upper portion of the transport carriage 1 as unloading means. After both end portions of the support belt 6 are alternately folded around the rollers 4 on both sides and the intermediate roller 5 corresponding to the roller 4 respectively,
In the example of the figure, the movable frame 3 is fixed, and in the example of FIG. 7, it is fixed to both sides of the carrier vehicle 1.

In this structure, the movable frame 3 is rotatably supported on the lower part of the movable frame 3, and the roller 7 is rotatably supported on the roller 7. When it is moved in both directions by pushing with the means 9a, 9b, 9c, 9d, the roller 4 acts like a fixed pulley and the roller 5 acts like a moving pulley, and according to the principle of the pulley, the support on the upper part of the carrier truck 1 is supported. The intermediate portion of the belt 6 is an integral multiple of the moving stroke of the moving frame 3, in the direction opposite to the moving direction of the moving frame 3, a triple stroke in the example of FIG. 6, and a double stroke in the example of FIG. To move the stroke.

Therefore, when the article W is supported on the intermediate portion of the support belt 6 on the upper part of the carriage 1, the goods W can be conveyed along the conveying path 2 by the movement of the carriage 1, and the goods W can be moved. By moving the frame 3, the transport carriage 1 can be carried out to the side of the transport path 2 along which it moves.

FIGS. 1 to 4 show the details of the triple-stroke type carriage 1 of the example of FIG.

The carrier 1 has a plate-shaped base 11, and the base 11 is connected to the base 11 of another carrier 1 by a link 12, and a plurality of horizontal wheels are provided on the lower sides of both sides of the base 11. A plurality of horizontal wheels 13 and vertical wheels 14 are provided, and the plurality of horizontal wheels 13 and vertical wheels 14 constitute a round bar-shaped first rail 15 and a second rail having a plate-shaped supporting surface which constitute the above-mentioned transport path 2.
By engaging the inverted H-shaped horizontal wheel 13 having the flanges 13a on both sides and the round bar-shaped first rail 15 with each other, positioning of the carriage 1 in the left-right direction and the vertical direction and load support can be achieved. Second, made up of vertical wheels 14 and plate-shaped support surfaces
By the engagement of the rails 16, the vertical load of the carriage 1 is supported.

The moving frame 3 has a shape in which both ends of a narrow plate are bent upward, and the moving frame 3 also has a plurality of horizontal and vertical wheels 19, 20.
And a horizontal wheel 19 is engaged with a pair of guide rails 21 provided on the base 11, and a vertical wheel 20 is a base.
Guide grooves 23 of a pair of side frames 22 provided on 11
And is thereby supported movably at a right angle to the moving direction of the carrier 1.

The roller 4 is pivotally supported by brackets 26 attached to both ends of the side frame 22, and the support belt 6 is supported.
The intermediate portion, that is, the portion that supports the article W is supported on a support plate 27 provided between the side frames 22.

Further, the roller 7 is axially supported by the lower end portion of a support rod 30 attached to the lower portion of the moving frame 3 via the pin 8, and the roller 7 and the pin 8 are downward from the opening 31 of the base 11. The rollers 7 project and the pair of guide rails 32 in the central portion of the transport path 2
Engage between the pair of guide rails 33 on both sides of the space or the transport path 2,
The pin 8 is adapted to engage with the switching guide 34 or the like of the transport path 2.

A roller 37 for driving and driving is provided under the base 11 coaxially with the link 12, and the roller 37 engages with a spiral groove of a drive screw 38 described later.

FIG. 5 shows a transport sorting apparatus using the transport carriage 1.

The transport path 2 is formed in an endless shape.
On the first and second rails 15 and 16 constituting the above, a large number of carrier vehicles 1 are respectively provided with horizontal wheels 13 and vertical wheels thereof.
A plurality of transport carriages 1 are movably supported on the transport path 2 and endlessly axially coupled to each other via links 12 on the transport path 2, and a drive screw 38 of a drive mechanism provided at an appropriate position on the transport path 2. By rotating the drive screw 38 and the roller 37 for driving the carriage 1 to drive, one or several carriages 1 are driven, whereby a large number of carriages on the carriage path 2 are conveyed. The trolley 1 is cyclically moved in the counterclockwise direction in the figure as a whole.

In addition, the first and second rails 15 and 16 forming the transport path 2
The second rail 16 having a plate-shaped supporting surface for the vertical wheels 14 is provided only in the straight portion of the conveying path 2 and prevents the vertical wheel 14 from generating squeaking noise in the curved portion.

Then, in the straight line portion on which the second rail 16 is provided, the transport path 2 has three loading positions 41, a plurality of unloading sorting positions 42 as unloading positions, and an unloading position. One carry-out cancellation position 43 is set in order along the moving direction of the carrier vehicle 1, and a carry-in conveyor for carrying the article W onto the support belt 6 of the carrier vehicle 1 at each one side of the carry-in position 41. 44 is connected and unloading sorting position 42
Receiving devices 45 for receiving the articles W unloaded from the support belt 6 of the transport carriage 1 are arranged on both sides of each of them, and are also unloaded from the support belt 6 of the transport carriage 1 to one side of the carry-out cancellation position 43. A receiving device 46 for receiving the item W is provided.

Then, at the carry-in position 41, the carry-out sorting position 42, and the carry-out cancel position 43, the operating means 9a for driving the support belt 6 by laterally moving the rollers 7 and the pins 8 under the moving frame 3 of the carrier vehicle 1, respectively. 9b, 9c, 9d are provided.

Of the three loading positions 41, the two loading positions 41 on the upstream side
The operating means 9a provided in each of the transport carts 1 are selectively actuated by being mounted on each of the transport carts 1, and at the time of actuation, the transport carts 1 are moved to move the transport path 2 on the side opposite to the carry-in conveyor 44. Roll 7 at the bottom of moving frame 3 that was moving between guide rails 33
And the pin 8 moves between the guide rails 32 in the central part of the transport path 2, and the rollers 7 from between the guide rails 33 to between the guide rails 32.
The movement of the pin 8 or the lateral movement of the moving frame 3 can drive the support belt 6 in the direction in which the article W from the carry-in conveyor 44 is pulled in.
The rollers 7 and the pins 8 that have been moving between the guide rails 33 are continuously moved as they are to the space between the guide rails 33, and the support belt 6
It is designed not to drive.

Further, the operating means 9b provided at the most downstream carry-in position 41 among the three carry-in positions 41 is moving between the guide rails 33 on the side of the carrying path 2 opposite to the carry-in conveyor 44. The pin 8 and the pin 8 are moved between the guide rails 32 in the central portion of the transport path 2 by the engagement with the rollers 7, and by this movement, the support belt 6
Can be driven in the direction in which the article W is drawn in from the carry-in conveyor 44.

And, the operating means provided at the plurality of unloading and sorting positions 42
9c selectively operates with respect to each of the transport carriages 1, and at the time of operation, the rollers 7 and the pins 8 that have been moving between the guide rails 32 at the center of the transport path 2 are located on one side of the transport path 2. Alternatively, it can be moved to the guide rail 33 on the other side, and by this movement, the support belt 6 can be driven in the direction in which the supported item W is carried out to the corresponding receiving device 45. The roller 7 and the pin 8 which have been moving between the 32 are continuously moved as they are between the guide rails 32 so that the support belt 6 is not driven.

In addition, the operating means 9d provided at the carry-out cancellation position 43
Is a roller 7 and a pin 8 that have been moving in the center of the transport path 2.
Is moved between the guide rails 33 on the side of the conveyance path 2 on the side opposite to the receiving device 46 by the engagement with the rollers 7, and by this movement,
The support belt 6 can be driven in the direction in which the supported article W is carried out to the receiving device 46.

Then, in this transport sorting device, a large number of transport carriages 1
Are circulated counterclockwise along the transport path 2, and in this state, at any of the loading positions 41, the loading conveyor is placed at an intermediate portion of the support belt 6 above the moving trolley 1.
The article W is carried in by 44, and in synchronization with this, the operating means 9
The support belt 6 of the carrier 1 is driven by a and 9b,
The article W is retracted and supported on the carrier 1 and is conveyed to the unloading sorting position 42 by the movement of the carrier 1.

Then, at each unloading / sorting position 42, when the carriage 1 carrying the goods W to be sorted out arrives, the operating means 9c drives the support belt 6 of the carriage 1 toward the predetermined receiving device 45. Then, the article W on the support belt 6 is carried out to the receiving device 45.

Further, at each unloading / sorting position 42, when the carrier 1 carrying the article W for which unloading / sorting is not carried arrives,
The transport vehicle 1 on which the article W is placed is moved to the next unloading and sorting position 42 without operating the operating means 9c.

By performing such an operation at each carry-out sorting position 42, the goods W carried on the support belt 6 of the carrier vehicle 1 at the carry-in position 41 are sorted into a predetermined receiving device 45 for each product type and each shipping destination.

And for some reason, for example, the receiving device to be carried out
If there is an item W that has not been sorted out by any of the receiving devices 45 due to a situation in which the item W that has been unloaded to 45 is jammed, etc., move this item W as it is along the carrier 1 and the carrier path 2. , May be circulated until the next unloading and sorting opportunity, but in this embodiment, at the unloading cancel position 43, the operating means 9d drives the support belt 6 of the carrier vehicle 1 to transfer the article W to the receiving device 46. It can be carried out.

In addition, the roller 7 and the pin 8 below the moving frame 3 of the carry-out carriage 1
Has moved to the side part of the conveyance path 2 after passing through the carry-out cancellation position 43, and in this state, since it passes the side of the drive screw 38, there is no fear of being damaged by the drive screw 38, and The subsequent loading operation at the loading position 41 is ready.

The transport path 2 has two rails 1 of the first and second types.
The first rail 15 is provided along the entire length of the transport path 2 by using the number 5 and 16, but since the first rail 15 has a round bar shape, it is easy to form a curved shape, and Since it can be easily installed on a curved portion, and the second rail 16 having a plate-shaped supporting surface is provided only on the straight portion of the transport path 2,
The formation and installation of this second rail 16 are also easy.

Then, the round bar-shaped first rail 15 and the flanges 13a on both sides are provided.
The horizontal H-shaped wheels 13 having the inverted H shape are engaged with each other to position the carriage 1 in the horizontal and vertical directions and to support the load. In addition to this, the carry-in position 41 and the carry-out sorting position 42 are provided.
In the straight line portion having the carry-out cancellation position 43, as a countermeasure against shock when carrying in and carrying out the article W, the second rail 16 provided with a plate-shaped supporting surface and the vertical wheel 14 are assisted.
By the engagement of, the vertical load of the carrier 1 is supported.

In this embodiment, the roller 4 is used as the belt winding member provided on both sides of the carrier 1. However, the belt is not limited to the roller 4, and a rod having a small diameter may be used, or the support belt 6 may be supported. The support belt 6 is attached to both ends of the support plate 27.
It is possible to provide a curved portion having a small curvature for sliding, and this curved portion can be used as a belt wrapping member. By doing so, the depressions from the conveying surfaces at both ends of the support belt 6 can be made small, and the conveying carriage 1 The height of can be lowered.

Further, in this embodiment, the wide support belt 6 is used as the carry-out means, but the carry-out means is not limited to this, and another carry-out means may be used. For example, the support belt 6 wound around the rollers 4 and 5. Instead of using a pair of chains 52 hung on a sprocket 51 as unloading means as shown in FIG. 8, or as shown in FIG. By using the narrow support belt 56 as a unloading means, the pair of chains 52 and the support belt 56 are moved by an integral multiple of the moving stroke of the moving frame 3,
The article W supported on the pair of chains 52 and the support belt 56 may be carried out to the side of the carriage 1.
In addition, in the case of FIG. 8, in addition to directly supporting the article W on the chain 52, it is possible to support the article W on a roller pivotally supported by the chain 52 at a predetermined interval. As shown in the figure, a pusher bar 59 is installed between the pair of chains 52 on both sides wound around the sprocket 51, and this pusher bar 59 is used as a carry-out means to move an integral multiple of the moving stroke of the moving frame 3, The product W supported on the plate 60 is pushed by the pusher bar 59 to transport the carriage 1
You may carry it out to the side of.

〔The invention's effect〕

According to the present invention, an article can be conveyed by a conveyance carriage that moves along a conveyance path, and the goods can be carried into the conveyance carriage at a carry-in position set in the straight section of the conveyance path, and the straight section of the conveyance path can be conveyed. At the carry-out position set to 1, the goods can be carried out to the side of the carrying path by using the carrying-out means provided on the carrying carriage. Then, by the engagement of the round bar-shaped first rail provided over the entire length of the transport path and the inverted H-shaped horizontal wheel having the flanges on both sides, the horizontal and vertical positions of the transport carriage and the support of the load are supported. You can In addition to this, the vertical rails can be supported by the engagement of the vertical rails with the second rail that has a plate-shaped support surface provided in the straight portion of the transport path, and the vertical loading of the transport cart can be supported. Also, since it is possible to take measures against shock when carrying out, the carrier can be stably supported. Since the first rail has a round bar shape, it can be easily formed in a curved shape and can be easily installed in a curved portion of the conveyance path. The second rail has a plate-shaped support surface, but is provided only on the straight portion of the transport path,
This second rail can be easily formed and installed, and the generation of squeaking noise due to the vertical wheels at the curved portion can be suppressed.

[Brief description of drawings]

1 to 7 show an embodiment of a carrier device of the present invention, and FIGS. 1 to 4 are plan views, front views, plan views and side views in which a part of the carrier is cut away. FIG. 5 is a plan view showing a transport / sorting device to which the transport device of this embodiment is applied, FIGS. 6 and 7 are explanatory views of the principle of the transport device of this embodiment, and FIGS. FIG. 11 is a plan view of a carrier truck showing a modified example of the means, and FIG. 11 is a front view of the modified example of FIG. 1 ... transportation vehicle, 2 ... transportation path, 6 ... support belt as unloading means, 13 ... horizontal wheel, 13a ... flange, 14
... vertical wheel, 15 ... first rail, 16 ... second rail, 41 ... carry-in position, 42 ... carry-out sorting position as carry-out position, 43 ... carry-out cancel position as carry-out position,
52 …… Chain as unloading means, 56 …… Support belt as unloading means, 59 …… Pusher bar as unloading means, W …… Items.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B65G 47/64 8010-3F

Claims (1)

[Claims] 1. A transport device for transporting an article by moving a transport carriage along a transport path having straight and curved portions, the transport path being provided along the entire length of the transport path. A round bar-shaped first rail and a second rail having a plate-shaped support surface provided in a straight line portion of the transport path, and the transport cart for transporting the article on the straight line portion of the transport path. A carry-in position for carrying in the above and a carry-out position for carrying out the above-mentioned goods from the above-mentioned carriage are set, and the above-mentioned carriage is a horizontal cross-section having an inverted H-shape having a flange for sandwiching the first rail at both sides. A carrier device comprising a wheel and a vertical wheel supported on the second rail, and carrying-out means for carrying out an item to a side of a carrying path at an upper portion.